I am using Sprite 5.1.0 build 1447 dsteinschneider. As you suspected, you cannot restore to a different ROM so that should not make you wary. I took backups as I went along loading programs on the new Kirvin clean build for sprint and have restored a few times with no problems. I always do a hard reset before the restore from the SD card backup. Everything is always stable after a restore. You only get into trouble installing programs that are not stable themselves for the specific device, hence always good to do a backup prior to any new software installations or tweaking the registry, etc. Honestly even if you don't have a backup program (AND don't have data you have not backed up to your pc - always a good practice to have backup/copies in multiple locations), it's pretty quick to reload everthing but for a few bucks it's nice to have a backup/restore application like sprite. The only program that is unstable is Netfront - frequently hangs but it's on my ppc only for when I really need to use the search function within a web page.

I have a Sprint 6700 but I would 'assume' your Verizon 6700 would run Sprite equally as well.

Thanks again to Jeff. Excellent work.